# Questions Asked onMay 30, 2012

1. ## algebra

translate the following phrase into an algebraic expression. "the quotient of a number less seven and twenty."

2. ## Geometry

The equation (x + 6)^2 + (y + 4)^2 = 36 models the position and range of the source of a radio signal. Describe the position of the source and the range of the signals.

3. ## GEOMETRY

The diameter of a circle has endpoints P(–10, –2) and Q(4, 6). a.Find the center of the circle. b.Find the radius. If your answer is not an integer, express it in radical form. c.Write an equation for the circle.

4. ## Chemistry

describe how you would prepare 250.0 mL of a .500 M solution of NaCl by using apparatus found in a chemistry lab.

5. ## Precalculus check answers help!

1.) Find an expression equivalent to sec theta sin theta cot theta csc theta. tan theta csc theta sec theta ~ sin theta 2.) Find an expression equivalent to cos theta/sin theta . tan theta cot theta ~ sec theta csc theta 3.) Simplify (tan^2 theta +

6. ## trig

solve equation for the exact solutions if possible put answer in degrees. 2tanx/3-tan^2x=1

7. ## stephn king

What does King mean in paragraph 4 when he says that horror movies are “innately conservative, even reactionary”? What does he mean in paragraph 11 when he calls them “anarchistic, and revolutionary”?

8. ## Geometry

name the major arc and find its measure

9. ## CALCULUS

The expression dy/dx = x(cbrt(y)) gives the slope at any point on the graph of the function f(x) where f(2) = 8. B. Write an expression for f(x) in terms of x. I can't figure out what to do with that cubed root; it keeps throwing me off.

10. ## Physics

Standing 2.5 m in front of a plane mirror with your camera, you decide to take a picture of yourself without turning the camera around. To what distance should the camera be focused to get a sharp image?

11. ## pre algebra

Tell whether the events are independent or dependent. Then find the probability. You roll a 6 on a number cube. Then you roll again and roll a 2.

12. ## ashford university

Trucks are required to pass through a weighing station so that they can be checked for weight violations. Trucks arrive at the station at the rate of 40 an hour between 7:00 p.m. and 9:00 p.m. Currently two inspectors are on duty during those hours, each

13. ## dot array

on centameter dot array draw all possible rectangles with a perimeter of 16 cm and sides whose lengths are whole centimeters

14. ## Precalculus check answers help!

7.) Write the equation 3x + 4y – 7 = 0 in normal form. 3/5x + 4/5y + 7/5 = 0 -3/5x - 4/5y - 7/5 = 0 -3/5x - 4/5y + 7/5 = 0 ~ 3/5x + 4/5y - 7/5 = 0 8.)Write the standard form of the equation of a line for which the length of the normal is 4 and the normal

15. ## Physics

2. A magnetic levitation or maglev train rides rails without touching them. Explain how this works using your data. Distance from surface (cm) Number of lines/0.5 cm Average number of lines/0.5 cm Field density (number of lines/cm) Side 1 Side 2 0.5 6 6 12

16. ## Physics

A dog is sitting in front of a plane mirror. At a command it jumps at the mirror with a speed of 0.50 m/s. How fast does the dog approach its image?

17. ## world geography

_______in north africa, southwest asia, central asia. a. early people domesticated animals b. many muslims today live c. many ancient culturals arose d. all of the above

18. ## Physics

2. A magnetic levitation or maglev train rides rails without touching them. Explain how this works using your data. Distance from surface (cm) Number of lines/0.5 cm Average number of lines/0.5 cm Field density (number of lines/cm) Side 1 Side 2 0.5 6 6 12

19. ## math

The altitude of the cloud base is particularly important at airports. (The cloud base is where the lowest layer of clouds begins to form.) A bright spotlight is directed vertically upward. It creates a bright spot on the cloud base. From a horizontal

20. ## physics

What is the radius of a communications satellite’s orbital path that is in a uniform circular orbit around Earth and has a period of exactly 24.0 hours (86,400 seconds). (Measurement is from the center of Earth.) G = 6.67 × 10-11 N.m2/kg2 ME = 5.98 ×

21. ## Com200 Interpersonal Communication

Self-concept is changed through interpersonal communication. true or false

22. ## dot array

centimeter dot array draw all possible rectangles with the area of 16 sq cm and sides whose lengths are whole centameters. lable lengths of two adjacent sides of each rectangle?? how do you do this

23. ## Algebra 2

five chips numbered 1 through 5 are placed in a bag. A chip is drawn and replaced. Then a second chip is drawn. Find the probability that the first chip is even and the other one is odd.

24. ## CALCULUS

If dy/dx = x cos x^2 and y = −3 when x = 0, when x = pi, y = . A. −3.215 B. sqrt(2) C. 1.647 D. 6 E. 3pi All of the potential solutions I've come up with don't satisfy any of the given values.

25. ## physics

Two identical diverging lenses are separated by 15 cm. The focal length of each lens is -8.0 cm. An object is located 4.0 cm to the left of the lens that is on the left. Determine the final image distance relative to the lens on the right.

26. ## Physics

An open railroad car of mass 2445 kg is coasting with an initial speed of 22 m/s on a frictionless, horizontal track. It is raining, and water begins to accumulate in the car. After some time, it is found that the speed of the car is only 5 m/s. How much

27. ## chemistry

what is the result of adding (2.5x10^3)+(3.5x10^2) ?

28. ## Science

An electric dipole of dipole moment 20*10^-6c.m. Is enclosed by a closed surface .what is the net flux coming out of the surface?

29. ## algebra

The prices of several chess sets are \$15, \$20, \$38, \$95, \$60, \$45, \$40, \$35, and \$50. Make a box-and-whisker plot of the data. What conclusions can you make? (You do not have to submit the box and whisker plot.)

30. ## Math

The angle of depression from a water tower to a forest fire underneath the tower is 18°. If the height of the water tower is 60 meters, what is the horizontal distance on the ground between the water tower and the fire?

31. ## English

Which of these was not a prime reason why Whitman chose to write in free verse? A. to express his individuality B. to celebrate democracy C. to convey a sense of freedom D. to imitate earlier poets he admired I say B but am I right

32. ## geometry

let p represent a true statement, while q and r represent false statements, find the truth value of the compound statement ~[(p^q)^r]

33. ## chemistry

Marla drives her car to school each day. If it takes her 12 minutes to drive one way, how many hours a week does Marla spend driving? (Express the answer in decimal form.)

34. ## physics

Two thin rectangular sheets (0.09 m 0.46 m) are identical. In the first sheet the axis of rotation lies along the 0.09-m side, and in the second it lies along the 0.46-m side. The same torque is applied to each sheet. The first sheet, starting from rest,

35. ## ap chem

you have 1.00 liter each of 0.10 M Na3PO4, Na2HPO4, NaH2po4 ka 1= 7.5*10^-3 ka2=6.2*10^-8 ka3=4.8*10^-13 a) prepare 500 ml of a buffer with PH= 7.6 b) how much 0.10 M HCL must be added to the 500ml of buffer to result in a PH=7.2 after the addition?

36. ## spelling bee

how do you know when to use ous, ious, eous, or uous when spelling. im asking for in the sense of a rule or something that can help me out while im spelling. And if you have any can you please give me some other rules that my also help me out. Thank you

37. ## economics

If all the assumption of perfect competition hold, why would firms in such an industry have little incentive to carry out technological change or much research and development? What conditions would encourage research and development in competitive

38. ## Physics

A car engine is initially rotating at 180 rad/s. It is then turned off and takes 1.20 s to come to a complete stop. What is the angular acceleration of the engine? Assume acceleration is constant.

39. ## world geography

deserts cover almost_______percent of north africa, southwest asia, and central asia. a. 6 b. 10 c. 50 d. 70 i picked b

40. ## economics

At a recent board meeting, the president and CEO got into a heated argument about whether to shut down the firm’s plant in Miami. The Miami plant currently loses \$60,000 monthly. The president of the firm argued that the Miami plant should continue to

41. ## Chemistry

How many milliliters of a .5M HNO3 (aq) is needed to completely neutralize 100mL of a 0.10M KOH (aq)?

42. ## Chemistry

100.0 mL Vinegar (d=1.06g/mL) contains 4% acetic acid. a. How many moles of acid are in 100 mL of vinegar? b. How many mL of 0.11 M NaOH are required to neutralize the vinegar?

43. ## physics

a 333 hz and 337 hz tuning forks are struck simultaneously. whats will be the beat frequency?

44. ## Physics

A man who is 6 ft tall is standing in front of a plane mirror that is 2 ft in length. If the mirror is placed lengthwise with its bottom edge 4 ft above the floor on a wall that is 5 ft away, how much of his image (i.e. what length of himself) can the man

are retail investors or traders permitted to naked short a stock? Who is permitted to naked short a stock assuming there has been no suspension of this practice. following the sec suspension of naked shorting post june 2008 did other nations follw this

46. ## math

(2,-7) is a point on the graph of y=f(x) . Find the corresponding point on the graph of y= 3f(5(x-1)+1 .

47. ## Physics

A man who is 6 ft tall is standing in front of a plane mirror that is 2 ft in length. If the mirror is placed lengthwise with its bottom edge 4 ft above the floor on a wall that is 5 ft away, how much of his image (i.e. what length of himself) can the man

48. ## kinematics

An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm thick and is constructed from steel (density=7850 kg m3) its moment of inertia is 0.156 kg m2 about its axis of rotation a) calculate the mass of the flywheel b) calculate the flywheel's radius

49. ## physics

A rotating door is made from four rectangular sections, as indicated in the drawing. The mass of each section is 86 kg. A person pushes on the outer edge of one section with a force of F = 61 N that is directed perpendicular to the section. Determine the

50. ## English

1. Call me at 010-1234-1234, and you can also visit our website at ccc.house.ccc. 2. Call me at my home phone. The number is 010-1234-1234. You can also open the website, ccc. house.ccc. (Would you check the two writings, please. Thank you.)

51. ## world geography

the economy of saudi arabia suffers when oil prices drop? a. saudi arabia b. libya c. kuwait d. all of tha above my answer is a

52. ## science material

. Calculate the following: a. the modulus of elasticity, b. the tensile strength, c. the fraction of the load carried by the fiber, for the following composite material stressed under isostrain conditions. The composite consists of a continuous

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53. ## Physics

A man who is 6 ft tall is standing in front of a plane mirror that is 2 ft in length. If the mirror is placed lengthwise with its bottom edge 4 ft above the floor on a wall that is 5 ft away, how much of his image (i.e. what length of himself) can the man

54. ## Chemistry

I had a lab about calorimetry where we would have a temperature probe in a calorimeter cup and then pour hot water into it to form a mixture until our graph (automatically plotted from the data that's recorded by the computer). Now for the report they ask

55. ## world geography

which statement about fishing in russia is true? a. russia's salmon catch is decreasing b. all of the fishing industry depends on surgeon c. fishing is important to the economy despite polluted waterways d. russia's fishing exports double every year

56. ## Precalculus check answers help!

16. Find the distance between P (–2, 5) and the line with equation x – 3y + 4 = 0. (1 point) 17(sqrt10)/ 10 0 -17(sqrt10)/ 10 13(sqrt10)/ 10 ~ 17. Find the distance between the lines with equations 5x + 12y = 12 and y = –x + 3. (1 point) 24/13 ~

57. ## physics

(1) If an electromagnetic wave has a period of 4.8 μs, what is the frequency and wavelength? I know how to find the frequency but for the wavelength how can we find it without the velocity being given???? (2) The beam of a helium-neon laser (λ = 632.8

58. ## physics

a train starts from rest and accelerates uniformly at 100m/min^2 for 10 min.then it maintains a constant velocity for remaining 20 min.brakes are applied and train uniformly retards and comes to rest in next 5 min. a)the maximum velocity reached b)the

59. ## physics

Microwaves are electromagnetic waves transmitted at a normal frequency of 2.45 GHz. Find the wavelength of the microwaves.

60. ## chemistry

What is the specific heat of an unknown substance if 2000 J of energy are required to raise the temperature of 4 grams of the substance 5 degrees Celsius?

61. ## Literature

Elegy Written in a Country Churchyard by Thomas Gray. I need help answering these questions, could you tell me if my answers are correct and if no, which one would it be? All help is greatly appreciated: 1.)The speaker's attitude toward the forefathers is

62. ## Calc

Hello im trying to integrate tan^3 dx i have solved out the whole thing but it doesnt match up with the solution.. this is what i did: first i broke it up into: integral tan^2x (tanx) dx integral (sec^2x-1)(tanx) dx then i did a u substitution u = secx du

63. ## Trig

The first 40 rows of seating in a certain section of a stadium have 25 seats, 28 seats, 31 seats, and so on. The 41st through the 75th rows each contain 125 seats. Find the total number of seats in this stadium section.

64. ## math

Imagine that I am hiring you to work for me for the next month (30 days). Would you rather have \$10,000 in a single payment on the 30th day? Or would you rather be paid by the following schedule: on the first day, \$0.01; on the second day, \$0.02; on the

65. ## Chemistry

Test corrections :) They're calculations/short answers. I'd just like something to compare answers to or help me get the full answer (all partial credits). Thanks! #9. When water is electrolyzed it produces hydrogen and oxygen. If 10.0% of 150.0g of water

66. ## pre algebra

Tell whether the events are independent or dependent. Then find the probability. You roll a 6 on a number cube. Then you roll again and roll a 2. Independent???

67. ## English

Which of these aspects of nature does the white whale not symbolize? A. destructiveness B. immortality C. spiritual comfort D. beauty

68. ## Physics

A man who is 6 ft tall is standing in front of a plane mirror that is 2 ft in length. If the mirror is placed lengthwise with its bottom edge 4 ft above the floor on a wall that is 5 ft away, how much of his image (i.e. what length of himself) can the man

69. ## math

the volume of a rectangular solid is given by expressions given below.in each case find the dimentions of the solid. a)15x^2-51x+18. b)x^3+13x^2+32x+20. c)x^2-5x/2-3/2. d)x^4+x^3-x-1 plz everyone help me out.till 2 o'clock...plz plz plz

70. ## math

the volume of a rectangular solid is given by expressions given below.in each case find the dimentions of the solid. a)15x^2-51x+18. b)x^3+13x^2+32x+20. c)x^2-5x/2-3/2. d)x^4+x^3-x-1 plz everyone help me out.till 2 o'clock...plz plz plz

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71. ## math

a teacher gives 7 stickers to each student in the class, she will have 24 stickers left. she is 32 stickers short of giving each student 9 stickers. how many stickers does she have and how many students

72. ## physics

1) If the first order maximum of He-Ne light exits a diffraction grating at an angle of 40.7o, at what angle will the first order maximum of violet light with a wavelength of 418 nm exit? What is He-Ne light????? 2) The most efficient antennae have a size

73. ## Maths

ABCD is a parrallelogram.If the two diagonals are equal, find the measure of angle ABC?

74. ## Math

You are standing on a cliff that is 50 m above the ocean and you see a ship that is 950 m from the bottom of the cliff. Find the angle of depression from you to the ship. Round your answer to the nearest tenth of a degree.

75. ## Life orientation

10-15 lines critically discuss 5 ways in which the human or environmental problem impacts on the community

76. ## Business English "Designing the page and ect"

Please double check my answers for me. 1. The appearance of a document can do all of the following except: A. establish rapport with the audience. B. guide your readers' attention C. substititue the written text in the document. D. Build goodwill. answer:

77. ## physics

a train starts from rest and accelerates uniformly at 100m/min^2 for 10 min.then it maintains a constant velocity for remaining 20 min.brakes are applied and train uniformly retards and comes to rest in next 5 min. a)the maximum velocity reached b)the

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78. ## biology i need help urgent

what characteristic distinguishes arthropods from other invertebrates? a. the colem b.the endoskeleton c.jointed appendages d.bilateral symetry

79. ## Physics

A string 1.5 m long breaks when its tension is 100 N. a. What is the greatest speed with which the ball can be moved around a horizontal circle if the ball has a mass of 2 kg? b. Find the speed for the same setup, but for a vertical circle.

80. ## social studies

What are threes major monotheistic religions in order from oldest to newest?

81. ## finance

Find the NPV and PI of a project that costs \$1,500 and returns \$800 in year 1 and \$850 in year 2. Assume the project’s cost of capital is 8 percent.

82. ## Math

Multiply the expressions. Simplify the result. d^2/ ef * 5e^5f/ 4d

83. ## kinematics

A car is travelling on a banked circular racetrack, Given that the track is banked at an angle of 16degree to the horizontal and the radius of the track is 50 metres and there are no friction forces present a) draw a free body diagram of the car

84. ## Busniess English

Select the correct punctuation to place on the line. Gusty winds damaged several power lines__ therefore, no one in our town has electricity. A. : B. ; C. - D. .

85. ## world geography

a_____climate receives an average of 10 inches of rain less per year. a. steppe b. highlands c. desert d. mediterrnean I chose c

86. ## Art

I left out these last sentences. Thank you very much. 1) I was having dinner / I had been having dinner when the telephone rang. (If the two actions happen at the same time only the past continuous is possible) 2)I'm going to go on a scout camp for two

87. ## Art

Self Portrait with Dr. Arrieta by Francisco Jose de Goya What are two techniques used for this painting?

88. ## english

What is the complete subject in this sentence? Several large shrubs hid the house from view.

89. ## finance

Find the NPV and PI of a project that costs \$1,500 and returns \$800 in year 1 and \$850 in year 2. Assume the project’s cost of capital is 8 percent.

90. ## Art

I urgently need you to revise these sentences. Thank you. 1) You can cheat by conceiling pieces of paper full of information in your pencil case. 2) you can take a picture of your exam questions and email it to a friend 2) you can instant message homework

91. ## pre algebra help

Find the measure of each of the interior angles and exterior angles of a regular hexagon

92. ## Math-find roots

1.One root of each equation below is the same for both equations. what is this root? a.3x^4 + 14x^3 + 8x^2=0 b.18x^4 - 50x^2=0 2. Find the other roots of each equation in question 1

93. ## math

Two coins are tossed, find the probability that two heads are obtained. Note: Each coin has two possible outcome H(heads), and T (tails).

94. ## nuclear physics

Calculate the age of a plant sample that shows about one-eighth of the carbon 14 of a living sample. The half-life of carbon 14 is about 5760a How do you do this?

95. ## world geography

the infrastructures of many in the region: a. are strained by the rapid increase in population b. add to disease and poverty c. do not adequently support the people who live there d. all of the above

96. ## angular momentum

a 8.20 kg particle P has a position vector of magnitude 6.90 m and angle θ1 = 42.0° and a velocity vector of magnitude 6.70 m/s and angle θ2 = 25.0°. Force , of magnitude 8.90 N and angle θ3 = 28.0° acts on P. All three vectors lie in the xy plane.

97. ## pre algebra answer check

The probability that you will win a contest is 76%. What is the probability that you will lose the contest? 24%

98. ## math

A cone shaped paper cup has a. Hight of 7 inches and a diameter of 5 inches what is its volume

99. ## physics

a train starts from rest and accelerates uniformly to achieve a velocity of 20m/sec in 10 sec.then train maintains this speed for next 200 sec.the breaks are then applied and train comes to rest in next 50 sec.calculate a)acceleration in first 10 sec.

100. ## geometry

convert the compound statements into words p= babies eat bananas q= babies do not sleep through the night ~(P arrow q)

101. ## MATH CHECK!

There are 20 red beans in the jar 10 fewer white than yellow half as many orange than red 10 more black than green twice as many yellow as red 5 fewer green as red please check: 10 orange 15 green 25 black 40 yellow 25 pink 30 white

102. ## pre algebra check

Find the product and simplify. m^2(3m^2) =3m^4????

103. ## chemistry

briefly explain how to demostrate that all the reactants in a neutralization reaction has been used up

104. ## algebra

Convert the fraction 8/17 to a decimal. Can you show me how to do this?

105. ## Geometry

For a given box, the height measures 4 meters. If the length of the rectangular base is 2 meters greater than the width of the base and the lateral area L is 96 square meters, find the dimensions of the box.

106. ## geometry

let p represent the statement, JIm plays football," and let q represent " Micheal plays football." Convert the compound statement into symbols.

107. ## pre algebra check

There are 30 students auditioning for new openings in a chorus. How many ways can you choose 4 students to be in the chorus? 30*29*28*27=657720

108. ## mc questions

Question # 1-What is the magnitude of the momentum of a particle of mass 2 kg with a speed of 5 m/s? a)2.5 kg m/s b)10 kg m/s c)3 kg m/s d)7 kg m/s Question # 2-If two objects with different masses collide and bounce off each other, the one with the

109. ## physics

a train starts from rest and accelerates uniformly to achieve a velocity of 20m/sec in 10 sec.then train maintains this speed for next 200 sec.the breaks are then applied and train comes to rest in next 50 sec.calculate a)acceleration in first 10 sec.

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110. ## CHEMISTRY

HOW MANY GRAMS OF LITHIUM DO YOU NEED TO REACT WITH 2.5 X 10^24 FLUORINE MOLECULES TO PRODUCE LITHIUM FLUORIDE?

111. ## Writing

Can someone explain How to embody education. I need to write a paper on How I embody the mission of my school.

112. ## Introduction to Psychology

Dr. Hall believes that thought processes determine behavior.She encourages her patient to examine the way he looks at problems and solves problems. They look for successful and unsuccessful evaluations and strategies.

113. ## Introduction to Psychology

Behavioral and Psychodynamic perspectives differ in that the former emphasizes the ______ while the latter focuses on _____.

114. ## Math--polynomial equation

Write a polynomial equation with these roots. a)-1,2+sqt3,2-sqt3 b)2,5,1 sqt= square root

115. ## chemistry

the volume of a gas is 250 mL at 350 kPa pressure. what will the volume be when the pressure is reduced to 50 kPa, assuming the temperature remains constant?

a rollar coaster is 80m high and has a 50kg car at rest. Ignore air resistance and friction. If the speed of the car is 60m/s what is the height? 0+50(9.8)(80) = 1/2(50)(vf^2) + (60)^2 + 50(9.8)(h). Is this equation correct?? If so I do not know how to

117. ## college math

the posted speed limit on many U. S. Highway is 65 miles per hour. What is this speed in feet per second?

118. ## Pre-calc

Project U onto V. U=(4,2) V=(1,-2) ?? Is there a formula for this?

119. ## pre algebra

Determine the radius of the circle given its area. Use 3.14 for π. A=3.7994 ft^2

120. ## finance

Find the NPV and PI of a project that costs \$1,500 and returns \$800 in year 1 and \$850 in year 2. Assume the project’s cost of capital is 8 percent.

121. ## pre algebra help

An apple falls from a 28 foot tree. The height of the apple, in feet, after t seconds of falling, can be found using the polynomial 16t 2 + 28. Find the apple's height after 0.5 second.

122. ## geometry

paul launches a rocket from a base standing 2 feet off the ground. the rocket has an initial velocity of 50 feet per second. how long will it take for the rocket to reach 100 ft. high?

123. ## Math - Functions

Please help! I have a test tomorrow. I've been working on this forever and just can't figure out the equation. Inputs X - 0, 3, 6, 9 Outputs Y - 1, 2, 3, 4

124. ## Math

4r=-32 Can you help show how the work is done. I got r=-8 Thank you I meant to put the minus in but I need help on the steps to get there.

125. ## health

What types of food can saturated fats be found in?

126. ## Science

Could you please check these sentences on LSD? Thank you, Writeacher. 1) LSD is a psychoactive substance capable of generating perceptual alterations. It was synthesized for the first time in 1938 by Albert Hoffman of Sandoz laboratories in Basel. 2) The

127. ## Physics

HELP WITH c.!!! A electric bill showed 1200 kilowatt hours (kWh) purchased at a cost of \$150.00. a. What does PECO charge per kWh? \$0.125 b. An electric dryer is rated at 5400 W. It takes 40 minutes to dry a normal load. What is the cost per load? \$0.45 c.

128. ## statistics

Given a level of confidence of 99% & a population standard deviation of 10, answer the following: (A)What other information is necessary to find the sample size (n)? (B)Find the Maximum Error of Estimate (E) if n=77. show all work.

User: Which of the following is NOT an example of parallel structure? A. "Yoga can help you develop flexibility, reduce stress, and increase relaxation." B. "Learn how to analyze business audiences, improve your style, and edit thoroughly." C. "You are all

130. ## Math

Let f(x)=x+1 and g(x)= "squareroot" of x what are the domains of "f" and "g"

131. ## pre algebra homework check

Find the product and simplify y(4y + 12) =4y^2+12y????

132. ## Calc

Hello im trying to integrate tan^3 dx i have solved out the whole thing but it doesnt match up with the solution.. this is what i did: first i broke it up into: integral tan^2x (tanx) dx integral (sec^2x-1)(tanx) dx then i did a u substitution u = secx du

133. ## Earth Science

Environmental Sustainability” refers to the ______________ of vital human ______________ support systems. fill in the blank

134. ## Mat 116

What is the solution of the system 7r - 5s = 36 and 5r + 7s = 68

135. ## chem

If the density of copper is 8.92 g/ml what is the % error?

136. ## English

I have three pets in my shop. (What is the part of speech of "in mmy shop"? Is it an adverbial phrase or an adjjective phrase? Does it modify 'pets' or 'have'?)

137. ## Pre-calc

Find the Degree Measure of the angle between the vectors. U=-4i+4j V=-4i+4j

138. ## Calc

Find the exact value of sin(arctan2/5)

139. ## math

4r=-32 Can you help show how the work is done. I got r=8

140. ## trig

solve equation for exact solution if possible leave answer in degree sinx/2=square root of 2- sinx/2

141. ## health

By making smart food choices, you can help protect yourself from? A. Accidents B. Bone loss C. Type 2 Diabetes D. Both B and C i think it c

142. ## medical billing in coding

the first step in coding is to read the record for the purpose of

143. ## Chemistry

Find the molarity of [H+] and [OH-] in the following solutions: a) 0.050 molar NaOH b) 2.09g of calcium hydroxide in 100 mL of water c) 0.875 M H2SO4

144. ## Understanding Hospital Billing and Coding

The first step in coding is to read the record for the purpose of __________?

145. ## physics

Imagine a car involved in a head-on crash. The driver, whose mass is m, is to be brought uniformly to rest within the passenger compartment by compressing an inflated air bag through a distance sc. Write an expression for the average force exerted on the

146. ## Introduction to Psychology

Alexander, a fifth- grade teacher, believes that Kimberly's behavior is a result of poor parenting, The school concerned with her inability to focus, attend to directions, and recall information from the previous day or events from earlier in the day.

147. ## math

A can of apple juice has a height of 13 centimeters and a radius of 3 centimeters.How much material is needed to make the can

148. ## HIS 103

What made Byzantium "Roman" other than its formerly being part of the Roman Empire? How Roman was it when it spoke Greek and, after the 11th century, was no longer Catholic?

149. ## algebra

Of the two fractions 15/21 and 19/17 which is smaller? I think its 19/17 but need someone to double check please.

150. ## pre algebra help

A company is making two types of aluminum containers. One is a cylinder with a height of 1.25 feet and a diameter of 1 foot. The other is a rectangular prism with a length of 0.75 foot, a width of 0.75 foot, and a height of 1 foot. Aluminum costs \$.02 per

151. ## geometry

let p,q,and r be the following statements p:Jamie is on the train. Q: Sylvia is at the park. r: Nigel is in the car. Translate the followins statement into english (~q^r) arrow ~p

152. ## physics- MC QUESTION!

Question: A particle is initially traveling to the right when it hits a wall and turns around to the left. The momentum after the collision is less than the initial momentum. a-the impulse on the particle is to the right b-the impulse on the particle is to

153. ## geometry

Find the measure of

154. ## Art

Can you please check these statements, Writeacher. Thank you. 1) If I hadn't been waiting for you, I wouldn't have arrived late. I was having dinner (not: I had been having dinner) when the telephone rang. 2) He told me he had lost the keys of his car (or

155. ## world geography

the russian revolution in 1917 established: c. a representive government, but the revolution continued

156. ## Math

Let T= {ti: i exists in N} and S be sets that T is denumerable and there exists a surjection f: T->S. Show that there exists an injection of S->N. I started off the problems applying the definitions. I must have made a big mistake somewhere because my

157. ## biology

what is a notochord, and what is the notochord surrounded by

158. ## math

At his school’s field day, 7 of Jake’s classmates won a bronze trophy, 14 won a silver trophy, and 10 won a gold trophy. If you choose one trophy winner at random, what is the probability that you would choose someone who won a bronze trophy?

159. ## pre algebra

A company is making two types of aluminum containers. One is a cylinder with a height of 1.25 feet and a diameter of 1 foot. The other is a rectangular prism with a length of 0.75 foot, a width of 0.75 foot, and a height of 1 foot. Aluminum costs \$.02 per

160. ## pre algebra homework check

Find the sum or difference. 4s^2-11s+s^2-6s+21 Is it 5s^2-17s+21?

161. ## Math--polynomial equation

Write a polynomial equation with these roots. a)-1,2+ã3,2-ã 3 b)2,5,1

162. ## math/algebra

What is the product of 11/15 and 12/7? Can you show me how this is done please?

163. ## fractions

What is the quotient of 5/22 and 6/11 ? please show work

165. ## U.S. History

How would I persuade someone that the Vietnam war was the most devisive war in American History?

166. ## Math

Find all solutions on the interval (0, 2pi) of the equation: 2(sin^2)t-3sint+1=0 how do you get this one started?

167. ## Understanding Hospital Billing and Coding

The first step in coding is to read the record for the purpose of __________?

168. ## Health Policy and Economic Analysis Care

Argue the following statement: Despite our relatively high level of healthcare expenditure, we may still be getting enough for our money.

169. ## college math

perform the following unit conversion 3 3/4 yd = _____ in

170. ## trig.

How is it that sin90 is negative?

171. ## college math

the little thrifty market has a parking lot with dimensions 125 feet by 210 feet. How many square yards is that?

172. ## college

high knob mountain is 4044 ft high. What is this distance in meters?

173. ## pre algebra check

What is the diameter of a cone with a height of 10 yards and a volume of 92.4 cubic yards? Round to the nearest whole number. 82.97=r^2???

174. ## world geography

russia's majormtrading partners include: a. brazil, france, and iraq b. japan, the european union, and the united states c. isreal, syria, and jordan d. all of the above

175. ## math

the sum of 25 consecutive whole numbers is 1000. what is the smallest of the whole numbers?

176. ## english

correct any errors. Please check my answers. Question: 12) Every player on the team, must give their best effort in the championship game. Every player on the team, must give his or her best effort in the championship game. Question: 13) Each person in the

177. ## math

A skaing rink offers a 6 month pass for \$30. what is the least number of times you would have to go there in 6 months to make the pass a better deal than paying \$2 a visit

178. ## math

a skating rink offers a 6 month pass for \$30. what is the least number of times you would have to go there in 6 months to make the pass a better deal than paying \$2 a visit

179. ## chemistry

write the structural formula for the dipeptide formed when the carboxyl end of cysteine bonds to the amino end of valine

180. ## pre algebra help

What is the diameter of a cone with a height of 10 yards and a volume of 92.4 cubic yards? Round to the nearest whole number.

181. ## math

there are two numbers between 1 and 500 hundred that are divisible by the numbers 2,3,5 and 7? what are they

182. ## math

-4 to the 6 power divided by -4 to the 3power

183. ## Math

Andrew has a bag containing 12 pattern blocks as shown. one block is chosen at random. what is the probability it is a circle. The bag contains 4 circles, 3 triangles, and 4 squares

184. ## to ms.sue

when teaching lessons, be creative and fun with it?